She, a woman, had gone through fifteen years of trials and hardships, and finally reached her peak. The most important thing in his heart was his only brother, and even his lover could not surpass her.
He, the overlord of one side, couldn't even say "I love you" to that cold-hearted woman even if he gave everything.
He was destined to unify the world, but when his prosperity was gone, he asked that person, "Sister, do you regret it?"